Mixed mode II and III fatigue crack growth in a rail steel [PDF]
Rolling contact fatigue cracks in rails undergo non-proportional mixed-mode I+II+III, in variable proportions along their front. In order to determine the crack growth thresholds and kinetics in mixed-mode II/III, asymmetric four point bending tests are run on a rail steel with different angles between the crack front and the shearing load, so as to
Bonniot, Thomas +2 more
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Fatigue Crack Growth under Non-Proportional Mixed Mode Loading in Rail and Wheel Steel Part 2: Sequential Mode I and Mode III Loading [PDF]
Rolling contact fatigue cracks in rail and wheel undergo non-proportional mixed mode I/II/III loading. Fatigue tests were performed to determine the coplanar and branch crack growth rates on these materials.
Makoto Akama, Akira Kiuchi
doaj +2 more sources
Description of Fatigue Crack Growth under Modes II, III and II+III in Terms of J-integral [PDF]
AbstractMode II and mode III fatigue crack growth rates and the related intrinsic stress intensity factor range thresholds ΔKIIeff,th and ΔKIIIeff,th were for a long time expected to be equal. However, there are many theoretical and experimental indications of a slower crack growth rate and a higher threshold for mode III than that for mode II for ...
Vojtek, Tomáš +4 more
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Study on Elastic Mixed Mode Fracture Behavior and II-III Coupling Effect [PDF]
Mixed mode fracture is a widely studied topic, while the coupling effects of mixed mode cracking are unclear. In this paper, elastic fracture behaviors and the coupling effects of the mixed mode cracks are studied in detail based on the finite element ...
Jinbo Zhang +5 more
core +1 more source
About the impact behavior of woven-ply carbon fiber-reinforced thermoplastic- and thermosetting-composites: A comparative study [PDF]
This study is aimed at comparing the response of TS-based (epoxy) and TP-based (PPS or PEEK) laminates subjected to low velocity impacts. C-scan inspections showed that impact led to diamond-shaped damage resulting from different failure mechanisms ...
Vieille, Benoit +5 more
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A new test methodology based on structural resonance for mode I fatigue delamination growth in an unidirectional composite [PDF]
A specific device has been set up to test by vibration resonance the mode I fatigue delamination growth onset of composite laminates. This test system, based on the DCB test specimen, is a mass-spring-specimen dynamic system designed to resonate.
Rico, Germain +4 more
core +1 more source
The interior defect-induced crack initiation mechanism and early growth behavior of Ti6Al4V alloy fabricated by laser powder bed fusion (LPBF) has been investigated in very high cycle fatigue (VHCF) regime.
Fulin Liu +5 more
doaj +1 more source
3D Morphology of Fracture Surfaces Created by Mixed-mode II+III Fatigue Loading in Metallic Materials [PDF]
This paper presents results of 3Dfractographical analysis of shear-mode fatigue cracks in ARMCO iron, α-titanium, nickel and the X5CrNi18-10 steel. Observation of crack paths on a microscopic level enables us to reveal local loading modes at the crack ...
Hohenwarter, A. +4 more
core +1 more source
A wide range of defects, failures, and degradation can develop at different stages in the lifetime of photovoltaic modules. To accurately assess their effect on the module performance, these failures need to be quantified.
Harsh Rajesh Parikh +9 more
doaj +1 more source
In order to understand the mechanism of conoidal fracture damage caused by a high-speed fragment-simulating projectile in titanium alloy layer of a composite armor plate composed of titanium- and aluminum-alloy layers, the ballistic interaction process ...
Peng-ru Li +3 more
doaj +1 more source

